Implement for effecting the relative movement of two elements



' I 1,631,110 May 1927' w. v. GILBERT IMPLEMENT FOR EFFECTING THERELATIVE MOVEMENT OF TWO ELEMENTS Original Filed June v, 1926 2Sheets-Sheet 1.

' 1,631,110 y 1927' w. v. GILBERT IMPLEMENT FOR EFFECTING 'ras RELATIVEuovzumm op TWO murmurs Original Filed June '7, 1926 2 Sheets-Sheet 2 r,or from each other,

Patented May 31, 1927.

sT TEs PATENT oFF cE.

WAn'rEP;

VILLA. GILBERT; OF wEsTMInsTEB; s men, nte i L g m dg i GIL BERTsPATENTS LIMITED, 01 LONDON, E GLAN A COMPANY;

IMPLEMENT on EEEEoT'me 'HE RELATIVE Mov'EME T or Two ELEMENTS."

Original application ment relatively to another through a small angleasin attaching anddetaching the removable tyre carrying portion of aroadvehicle wheel.- y 7 Thisapplication constitutes a division of myco-pending application for Letters Patent on detachable wheel mechanism,filed June 7, 192 6, and bearing Serial Number 114,342. I

The present invention comprises an eccentric sheave provided with a handlever and .carrying an eccentrically placed projection,

pin or socket for engaging one of the elements to be moved relatively tothe other, the eccentric sheave being provided with a connecting link inthe form of a strap member carrying an e'ccentrically placed projection,pin or socket for engaging the other of the relatively movable elements.

The invention is illustrated b'y thelacco m I v I I tightening thedetachable wheel shown in panying drawings wherein,

Figure 1 is a plan oftheiinplement'; Figure 2 aside elevation thereof,Figure3 an alternative construction of a' portion o't' Figures 1 and 2.I I Figured is an elevation of detachable wheel, and e Figure 5 isa planot-Figure 1' showing in chain lines the implement in usingposit'ion. Theimplement is designed for moving to two pins such as 16 and 10, Figures4: andlinked, respectively'on two relatively movable elements such as anave member 11 and a hub member 1230f a detachable wheel.

This implement 18 so constructed that with a constant pullthe-tightening force avail a portion of a able ,will increase graduallyas requirec until a maximum tightening grip is, ob

tained. p

The implement consistsof a hand lever 30 on the lower end of WhiGlliS aneccen-- tric sheave 31 having an eccentric hole 32;

The eccentric sheave 31 tits in a strap 33 formed on one end of aneccentric strap member 34f operating as a connect ng lmk and referred toherein as; a connecting, link i 134-, the other ;end of the link'beingprovided wit-ha hole f35. v

The holes-32 and-35 areadaptedto fit over filed June7, 1326', Serial Nb.114,342; and m G reat BritainiFeb'ruary 25 i926.- Divided and thisapplication filed January 22, 1927. 7 Serial No. 162,901.

two members such as the pins 10'and 16' required to be brought togetherwith a great Iorce.

The connecting link 34 is provided with stops 3,7 and 38 forlimiting'the movement (it the hand lever 30, the'upper portion of thestop 88 being provided with apus' her or press button 47 to facilitateplacing the implement on the pins 10 and 16.

lVhen the implement is placed'on the pins suchas 16 and 10, and theeccentric sheave :31 turned by means of the hand lever 30 in thestrap33, the eccentric action of the hole 32 causes; the pins 16 and 10to move to or from-each other relatively according to the directionvo'fthe movement of the hand lever 30 and the position ofthe centre of theeccentric sheave 31 relatively to a line passing'through the centres ofthe pins 16 and 10 the tension increasing to a greater and greaterextent between the pins as they approach each other to the osition inwhich all'three centres are in one straight line;

"In designing the implement for use in Figures 4ra'ndam its-hub, theconnecting link 34 is provided, with aquadrant portion 36 having aprojection 39' adapted to enter laterally into a groove 46' cut'in theside of the pin 21. The projection 39 is formed by a plate secured tothe link 34' by screws 58.

he groove-46 is normally covered by a sleeve or detent 18 and when thelatter is I l' lVhen the tightening is-"complet'ed a notch .40 providedii'rthe' quadrant 36 comes into register with the pin 21 so that theprojection 39 slides out'of the groove 46 and leaves the tighteningdevice free to be removed from the pins 16 and 1O. The notch 40 maybeso' disposed on the projection 39 of the quadrant 36 that thetightening implement can only be put on or withdrawn from the pins116and10 when the loose' hub- 13 is completely locked or unlocked, and therelative'. positions of the notch lO and thfe groove 46 will then serveto give a vi sible' andphysical indication as to the wheel being lockedor unlocked.

, The sheave 31 is held in position in the strap 33 by making theportion 48 a detachable plate held on the main portion of the sheave 31by screws 49, and instead of providing a notch 40 in the projection 39of the quadrant 36, the projection 39 can be made to move radiallyinwards as shown in Figure 5 wherein the projection 39 is a plateprovided with a pusher 50 from which extend two headed pins 51 and 52sliding in a slot 53 provided in a plate 36 fixed on the link 34 byscrews 54, the plate 39 having a pin 55 extending from its lower edgeand sliding in a fixed lug 56, the pin 55 being provided with a spring57 for keeping the plate 39 in the extended position so that it can bemoved laterally into the groove 46 in the pin 21 as described in usingthe implement.

It Will be evident that when the hand implement is applied to turn theloose hub 13, rotation of the crank lever 30 about the wheel pin 10fitting in the hole 32 produces a relative motion between this pin andthe loose hub pin 16 when in the hole 35 and consequently a rotation ofthe loose hub 13 in the wheel. For a uniform speed of rotation of thelever 30 the motion between the pins 10 and 16 is practically ,a simpleharmonic one and (as is characteristic of slider crank chains, thevelocity ratio between the crank pin, that is the eccentric sheave 31,and the slider, that is the loose hub pin 16, approaches infinity as adead centre is approached. It is this characteristic which has beenutilized in the invention for obtaining great leverage wherewith to verysecurely tighten the loose hub, for, as the loose hub becomes tighterthe leverage becomes greater.

NVhat I claim and desire to secure by Letters Patent is 1. A handimplement for effecting the relative movement of two elements comprisingan eccentric sheave and a connecting link, the sheave member beingprovided with means for rotating it about its axis and also with meansfor detachably connecting it to one of the relatively movable elementsat a position eccentric to the sheave, and the connecting link forming astrap member of the eccentric and provided with means for detachablyconnecting it to the other relatively movable element.

2. A hand implement in accordance with claim 1 provided with means forpreventing its removal from the two relatively movable elements duringthe operation of the implement.

3. A hand implement in accordance wtih claim 1, wherein means areprovided for limiting the angular movement of the cocentric sheave.

4. A hand implement for eliecting the relative angular movement of twoelements about a common axis, comprising an eccentric sheave, aconnecting link, an operating lever, means for detachably connecting oneend of the link to one of the angularly movable elements, means 'fordetachably connecting the eccentric sheave at a position eccentricthereon to the other angularly movable element, the sheave beingrotatively mounted in the other end of the connecting link and fixed tothe operating lever.

5. 11 hand implement for effecting the rel ative angular movement of twoelements about a common axis each element being provided with aprojecting pin movable to and from each other transversely, comprisingan eccentric sheave, a connecting link, and an operating lever, one endof the connecting link having an opening to fit on the projecting pm ofone 01 the movable elements, the

eccentric sheave having a hole arranged eccentric to its axis and to fiton the projecting pin of the other movable element, the sheave beingrotatively mounted in the other end of theconnecting link and fixed tothe operating lever.

6. A hand implement for effecting the relatively angular movement of twoelements about a common axis one element being provided with twoprojecting pins and the other with one, all three pins being parallel toone another, comprising an eccentric sheave fixed to an operating lever,a connecting link having a projecting quadrant, and an operating lever,one end of the connecting link having an opening to fit on one of theprojecting pins of one of the movable elements, the eccentric sheavehaving a hole arranged eccentric to its axis and to fit on theprojecting pin of the other movableelement, the sheave being rotativelymounted in the other end of the connecting link, and the projectingquadrant of the connect ing link arranged during the operation of theimplement to enter a groove provided in the side of the third pinprojecting from one of the elements.

7. A hand implement for effecting the relative angular movement'of twoelements about a common axis one element being provided with aprojecting pin having a V groove in its side, comprising an eccentricsheave having an operating lever, a connecting link having a projectingquadrant, means for detachably connecting one end of the link to one ofthe angularly movable elements and means'for detachably connecting theeccentric sheave at a position eccentric thereto to the other angularlymovable element, the sheave being rotatively mounted in the other end ofthe connecting link, and the projecting quadrant of the connecting linkarranged during the operation of the implement to enter a grooveprovided in the side of the pin projecting from one of the elements.

8. A hand implement for effecting the relative angular movement of twoelements about a common axis one element being pro-- vided with adepressible sprin -returned projecting pin having a groove in its side,comprising an eccentric sheave having an operating lever, a connectinglink having a projecting quadrant provided at one portion with a notch,means for detachably connecting one end of the link to one of theangularly movable elements and'means for detachably connecting theeccentric sheave at a position eccentric thereto to the other angularlymovable element, the sheave being rotativ-ely mounted in the other endof the connecting link, and the projecting quadrant of the connectinglink arranged during the operation of the implement to enter a grooveprovided in the side of the pin projecting from one of the elements andmove in such groove until it reaches the notch and so enable the springcontrolled pin to rise in the notch.

9. A hand implement for effecting the relative angular movement of twoelements about a common axis one element being provided with one fixedprojecting pin and one depressible spring-returned pin and the otherwith one pin all three pins being parallel to one another, comprising aneccentric sheave fixed to an operating lever, a connecting link having aprojecting quadrant provided at one portion with a notch, and

an operating lever, one end of the connecting link having an opening tofit on one of the projecting pins of one of the movable elements, theeccentric sheave having a hole arranged eccentric to its axis and to fiton the projecting pin of the other movable element, the sheave beingrotatively mounted in the other end of the connecting link, and theprojecting quadrant of the connecting link arranged during the operationof the implement to enter a groove provided in the side of thedepressible pin projecting from one of the elements and move in suchgroove until it reaches the notch and so enable the spring controlledpin to rise in the notch.

10. A hand implement for efiecting the relative angular movement of twoelements about a common axis each element being provided with aprojecting pin movable to and from each other transversely, comprisingan eccentric sheave, a connecting link, and an operating lever, one endof the connecting link having an opening to fit on the. projecting pinof one of the movable elements, the eccentric sheave having a holearranged eccentric to its axis andto fit on the projecting pin of theother movable element, the sheave being rotatively mounted in the otherend of the connecting link and fixed to the operating lever theconnecting link being provided with stops for limiting the movement ofthe operating lever.

In witness whereof I aflix my signature.

WALTER VILLA GILBERT.

